Arthropods
Arthropod Vectors
Spiders
Arthropods of the class ARACHNIDA, order Araneae. Except for mites and ticks, spiders constitute the largest order of arachnids, with approximately 37,000 species having been described. The majority of spiders are harmless, although some species can be regarded as moderately harmful since their bites can lead to quite severe local symptoms. (From Barnes, Invertebrate Zoology, 5th ed, p508; Smith, Insects and Other Arthropods of Medical Importance, 1973, pp424-430)
Crustacea
Wolbachia
Insects
The class Insecta, in the phylum ARTHROPODA, whose members are characterized by division into three parts: head, thorax, and abdomen. They are the dominant group of animals on earth; several hundred thousand different kinds having been described. Three orders, HEMIPTERA; DIPTERA; and SIPHONAPTERA; are of medical interest in that they cause disease in humans and animals. (From Borror et al., An Introduction to the Study of Insects, 4th ed, p1)
Arthropod Proteins
Arthropod Venoms
Entomology
Fossils
Scorpions
Arthropods of the order Scorpiones, of which 1500 to 2000 species have been described. The most common live in tropical or subtropical areas. They are nocturnal and feed principally on insects and other arthropods. They are large arachnids but do not attack man spontaneously. They have a venomous sting. Their medical significance varies considerably and is dependent on their habits and venom potency rather than on their size. At most, the sting is equivalent to that of a hornet but certain species possess a highly toxic venom potentially fatal to humans. (From Dorland, 27th ed; Smith, Insects and Other Arthropods of Medical Importance, 1973, p417; Barnes, Invertebrate Zoology, 5th ed, p503)
Annelida
Biological Evolution
Tribolium
Beetles
Isopoda
One of the largest orders of mostly marine CRUSTACEA, containing over 10,000 species. Like AMPHIPODA, the other large order in the superorder Peracarida, members are shrimp-like in appearance, have sessile compound eyes, and no carapace. But unlike Amphipoda, they possess abdominal pleopods (modified as gills) and their bodies are dorsoventrally flattened.
Amber
Ticks
Blood-sucking acarid parasites of the order Ixodida comprising two families: the softbacked ticks (ARGASIDAE) and hardbacked ticks (IXODIDAE). Ticks are larger than their relatives, the MITES. They penetrate the skin of their host by means of highly specialized, hooked mouth parts and feed on its blood. Ticks attack all groups of terrestrial vertebrates. In humans they are responsible for many TICK-BORNE DISEASES, including the transmission of ROCKY MOUNTAIN SPOTTED FEVER; TULAREMIA; BABESIOSIS; AFRICAN SWINE FEVER; and RELAPSING FEVER. (From Barnes, Invertebrate Zoology, 5th ed, pp543-44)
Mites
Any arthropod of the subclass ACARI except the TICKS. They are minute animals related to the spiders, usually having transparent or semitransparent bodies. They may be parasitic on humans and domestic animals, producing various irritations of the skin (MITE INFESTATIONS). Many mite species are important to human and veterinary medicine as both parasite and vector. Mites also infest plants.
Evolution, Molecular
Predatory Behavior
Molecular Sequence Data
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
Molting
Periodic casting off FEATHERS; HAIR; or cuticle. Molting is a process of sloughing or desquamation, especially the shedding of an outer covering and the development of a new one. This phenomenon permits growth in ARTHROPODS, skin renewal in AMPHIBIANS and REPTILES, and the shedding of winter coats in BIRDS and MAMMALS.
Horseshoe Crabs
Acari
Daphnia
Symbiosis
Biodiversity
Ecosystem
Trees
Species Specificity
The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species.
Ixodes
Hemiptera
Diptera
An order of the class Insecta. Wings, when present, number two and distinguish Diptera from other so-called flies, while the halteres, or reduced hindwings, separate Diptera from other insects with one pair of wings. The order includes the families Calliphoridae, Oestridae, Phoridae, SARCOPHAGIDAE, Scatophagidae, Sciaridae, SIMULIIDAE, Tabanidae, Therevidae, Trypetidae, CERATOPOGONIDAE; CHIRONOMIDAE; CULICIDAE; DROSOPHILIDAE; GLOSSINIDAE; MUSCIDAE; TEPHRITIDAE; and PSYCHODIDAE. The larval form of Diptera species are called maggots (see LARVA).
Population Dynamics
Ants
Insects of the family Formicidae, very common and widespread, probably the most successful of all the insect groups. All ants are social insects, and most colonies contain three castes, queens, males, and workers. Their habits are often very elaborate and a great many studies have been made of ant behavior. Ants produce a number of secretions that function in offense, defense, and communication. (From Borror, et al., An Introduction to the Study of Insects, 4th ed, p676)
Mythology
Spider Venoms
Dystonic Disorders
Acquired and inherited conditions that feature DYSTONIA as a primary manifestation of disease. These disorders are generally divided into generalized dystonias (e.g., dystonia musculorum deformans) and focal dystonias (e.g., writer's cramp). They are also classified by patterns of inheritance and by age of onset.
Encyclopedias as Topic
Gryllidae
Myths, models and mitigation of resistance to pesticides. (1/594)
Resistance to pesticides in arthropod pests is a significant economic, ecological and public health problem. Although extensive research has been conducted on diverse aspects of pesticide resistance and we have learned a great deal during the past 50 years, to some degree the discussion about 'resistance management' has been based on 'myths'. One myth involves the belief that we can manage resistance. I will maintain that we can only attempt to mitigate resistance because resistance is a natural evolutionary response to environmental stresses. As such, resistance will remain an ongoing dilemma in pest management and we can only delay the onset of resistance to pesticides. 'Resistance management' models and tactics have been much discussed but have been tested and deployed in practical pest management programmes with only limited success. Yet the myth persists that better models will provide a 'solution' to the problem. The reality is that success in using mitigation models is limited because these models are applied to inappropriate situations in which the critical genetic, ecological, biological or logistic assumptions cannot be met. It is difficult to predict in advance which model is appropriate to a particular situation; if the model assumptions cannot be met, applying the model sometimes can increase the rate of resistance development rather than slow it down. Are there any solutions? I believe we already have one. Unfortunately, it is not a simple or easy one to deploy. It involves employing effective agronomic practices to develop and maintain a healthy crop, monitoring pest densities, evaluating economic injury levels so that pesticides are applied only when necessary, deploying and conserving biological control agents, using host-plant resistance, cultural controls of the pest, biorational pest controls, and genetic control methods. As a part of a truly multi-tactic strategy, it is crucial to evaluate the effect of pesticides on natural enemies in order to preserve them in the cropping system. Sometimes, pesticide-resistant natural enemies are effective components of this resistance mitigation programme. Another name for this resistance mitigation model is integrated pest management (IPM). This complex model was outlined in some detail nearly 40 years ago by V. M. Stern and colleagues. To deploy the IPM resistance mitigation model, we must admit that pest management and resistance mitigation programmes are not sustainable if based on a single-tactic strategy. Delaying resistance, whether to traditional pesticides or to transgenic plants containing toxin genes from Bacillus thuringiensis, will require that we develop multi-tactic pest management programmes that incorporate all appropriate pest management approaches. Because pesticides are limited resources, and their loss can result in significant social and economic costs, they should be reserved for situations where they are truly needed--as tools to subdue an unexpected pest population outbreak. Effective multi-tactic IPM programmes delay resistance (= mitigation) because the number and rates of pesticide applications will be reduced. (+info)Hemocyanin of the horseshoe crab, Limulus polyphemus. Structural differentiation of the isolated components. (2/594)
The high molecular weight hemocyanin found in the hemolymph of the horseshoe crab, Limulus polyphemus, is composed of at least eight different kinds of subunits. Ion exchange chromatography at high pH in the presence of EDTA yields five major zones, hemocyanins I to V, three of which are electrophoretically heterogeneous. The subunits have similar molecular weights, 65,000 to 70,000, and their amino acid compositions are remarkably similar to each other and to other arthropod and molluscan hemocyanins. Digestion of the native subunits of Limulus hemocyanin by formic acid or trypsin shows considerable structural diversity which is supported by cyanogen bromide cleavage patterns and by peptide mapping of the tryptic peptides prepared from denatured hemocyanin subunits. The structural differentiation of the subunits is accompanied by functional differentiation, as shown in previous investigations of their O2 and CO affinities (Sullivan, B., Bonaventura, J., and Bonaventura, C. (1974) Proc. Natl. Acad. Sci. U.S.A. 71, 2558-2562; Bonaventura, C., Bonaventura, J., Sullivan, B., and Bourne, S. (1975) Biochemistry 13, 4784-4789). The subunit diversity of Limulus hemocyanin suggests that other electrophoretically heterogeneous hemocyanins may be composed of structurally distinct subunits. (+info)Cryptocyanin, a crustacean molting protein: evolutionary link with arthropod hemocyanins and insect hexamerins. (3/594)
Cryptocyanin, a copper-free hexameric protein in crab (Cancer magister) hemolymph, has been characterized and the amino acid sequence has been deduced from its cDNA. It is markedly similar in sequence, size, and structure to hemocyanin, the copper-containing oxygen-transport protein found in many arthropods. Cryptocyanin does not bind oxygen, however, and lacks three of the six highly conserved copper-binding histidine residues of hemocyanin. Cryptocyanin has no phenoloxidase activity, although a phenoloxidase is present in the hemolymph. The concentration of cryptocyanin in the hemolymph is closely coordinated with the molt cycle and reaches levels higher than hemocyanin during premolt. Cryptocyanin resembles insect hexamerins in the lack of copper, molt cycle patterns of biosynthesis, and potential contributions to the new exoskeleton. Phylogenetic analysis of sequence similarities between cryptocyanin and other members of the hemocyanin gene family shows that cryptocyanin is closely associated with crustacean hemocyanins and suggests that cryptocyanin arose as a result of a hemocyanin gene duplication. The presence of both hemocyanin and cryptocyanin in one animal provides an example of how insect hexamerins might have evolved from hemocyanin. Our results suggest that multiple members of the hemocyanin gene family-hemocyanin, cryptocyanin, phenoloxidase, and hexamerins-may participate in two vital functions of molting animals, oxygen binding and molting. Cryptocyanin may provide important molecular data to further investigate evolutionary relationships among all molting animals. (+info)Mechanisms of arthropod transmission of plant and animal viruses. (4/594)
A majority of the plant-infecting viruses and many of the animal-infecting viruses are dependent upon arthropod vectors for transmission between hosts and/or as alternative hosts. The viruses have evolved specific associations with their vectors, and we are beginning to understand the underlying mechanisms that regulate the virus transmission process. A majority of plant viruses are carried on the cuticle lining of a vector's mouthparts or foregut. This initially appeared to be simple mechanical contamination, but it is now known to be a biologically complex interaction between specific virus proteins and as yet unidentified vector cuticle-associated compounds. Numerous other plant viruses and the majority of animal viruses are carried within the body of the vector. These viruses have evolved specific mechanisms to enable them to be transported through multiple tissues and to evade vector defenses. In response, vector species have evolved so that not all individuals within a species are susceptible to virus infection or can serve as a competent vector. Not only are the virus components of the transmission process being identified, but also the genetic and physiological components of the vectors which determine their ability to be used successfully by the virus are being elucidated. The mechanisms of arthropod-virus associations are many and complex, but common themes are beginning to emerge which may allow the development of novel strategies to ultimately control epidemics caused by arthropod-borne viruses. (+info)Internal phylogeny of the Chilopoda (Myriapoda, Arthropoda) using complete 18S rDNA and partial 28S rDNA sequences. (5/594)
The internal phylogeny of the 'myriapod' class Chilopoda is evaluated for 12 species belonging to the five extant centipede orders, using 18S rDNA complete gene sequence and 28S rDNA partial gene sequence data. Equally and differentially weighted parsimony, neighbour-joining and maximum-likelihood were used for phylogenetic reconstruction, and bootstrapping and branch support analyses were performed to evaluate tree topology stability. The results show that the Chilopoda constitute a monophyletic group that is divided into two lines, Notostigmophora (= Scutigeromorpha) and Pleurostigmophora, as found in previous morphological analyses. The Notostigmophora are markedly modified for their epigenic mode of life. The first offshoot of the Pleurostigmophora are the Lithobiomorpha, followed by the Craterostigmomorpha and by the Epimorpha s. str. (= Scolopendromorpha + Geophilomorpha), although strong support for the monophyly of the Epimorpha s. lat. (= Craterostigmomorpha + Epimorpha s. str.) is only found in the differentially weighted parsimony analysis. (+info)Divergence time estimates for the early history of animal phyla and the origin of plants, animals and fungi. (6/594)
In the past, molecular clocks have been used to estimate divergence times among animal phyla, but those time estimates have varied widely (1200-670 million years ago, Ma). In order to obtain time estimates that are more robust, we have analysed a larger number of genes for divergences among three well-represented animal phyla, and among plants, animals and fungi. The time estimate for the chordate-arthropod divergence, using 50 genes, is 993 +/- 46 Ma. Nematodes were found to have diverged from the lineage leading to arthropods and chordates at 1177 +/- 79 Ma. Phylogenetic analyses also show that a basal position of nematodes has strong support (p > 99%) and is not the result of rate biases. The three-way split (relationships unresolved) of plants, animals and fungi was estimated at 1576 +/- 88 Ma. By inference, the basal animal phyla (Porifera, Cnidaria, Ctenophora) diverged between about 1200-1500 Ma. This suggests that at least six animal phyla originated deep in the Precambrian, more than 400 million years earlier than their first appearance in the fossil record. (+info)Animal mitochondrial genomes. (7/594)
Animal mitochondrial DNA is a small, extrachromosomal genome, typically approximately 16 kb in size. With few exceptions, all animal mitochondrial genomes contain the same 37 genes: two for rRNAs, 13 for proteins and 22 for tRNAs. The products of these genes, along with RNAs and proteins imported from the cytoplasm, endow mitochondria with their own systems for DNA replication, transcription, mRNA processing and translation of proteins. The study of these genomes as they function in mitochondrial systems-'mitochondrial genomics'-serves as a model for genome evolution. Furthermore, the comparison of animal mitochondrial gene arrangements has become a very powerful means for inferring ancient evolutionary relationships, since rearrangements appear to be unique, generally rare events that are unlikely to arise independently in separate evolutionary lineages. Complete mitochondrial gene arrangements have been published for 58 chordate species and 29 non-chordate species, and partial arrangements for hundreds of other taxa. This review compares and summarizes these gene arrangements and points out some of the questions that may be addressed by comparing mitochondrial systems. (+info)Molecular characterization of American cockroach tropomyosin (Periplaneta americana allergen 7), a cross-reactive allergen. (8/594)
Inhalation of allergens produced by the American cockroach (Periplaneta americana) induces IgE Ab production and the development of asthma in genetically predisposed individuals. The cloning and expression in Escherichia coli of P. americana tropomyosin allergen have been achieved. The protein shares high homology with other arthropod tropomyosins (80% identity) but less homology with vertebrate ones (50% identity). The recombinant allergen was produced in E. coli as a nonfusion protein with a yield of 9 mg/l of bacterial culture. Both natural and recombinant tropomyosins were purified by isoelectric precipitation. P. americana allergen 1 (Per a 1) and Per a 7 (tropomyosin) are to date the only cross-reacting allergens found in cockroaches. ELISA and Western blot inhibition experiments, using natural and recombinant purified tropomyosins from shrimp and cockroach, showed that tropomyosin induced cross-reactivity of IgE from patients allergic to these allergens, suggesting that this molecule could be a common allergen among invertebrates. (+info)
Diplopoda
Ordinal-Level Phylogenomics of the Arthropod Class Diplopoda (Millipedes) Based on an Analysis of 221 Nuclear Protein-Coding...
Author: Dai, Wencai / Subject: Folsomia candida / Text Availability: Citation in PubAg - PubAg Search Results
Transcriptional profiling of the soil invertebrate (Folsomia candida) in pentachlorophenol contaminated soil on Environmental...
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A congruent solution to arthropod phylogeny: phylogenomics, microRNAs and morphology support monophyletic Mandibulata |...
Molecular and biochemical characterizations of a novel arthropod endo-β-1,3-glucanase from the Antarctic springtail,...
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Diplopoda - Wikispecies
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Collembola
BS EN ISO 11267:2014 - Soil quality. Inhibition of reproduction of Collembola (Folsomia candida) by soil contaminants
Myriapoda - Simple English Wikipedia, the free encyclopedia
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Enalikter: not arthropod but annelid | Proceedings of the Royal Society of London B: Biological Sciences
house centipede larva
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ch21 - ENT 100 Fall 2009 1 Lecture 21 Insects Disease Many insects and other arthropods are studied because they transmit...
Defense Mechanisms of Arthropods. XI. The Structure, Function, and Phenolic Secretions of the Glands of a Chordeumoid Millipede...
Study Finds Surprising New Branches On Arthropod Family Tree - The LockerGnome Daily Report
Nonnative plant shifts functional groups of arthropods following drought
Termites and termite mounts, Silverfish and Springtails. Genuine antique print for sale.
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Unraveling Arthropoda | Arthropoda
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A natural history of conspecific aggregations in terrestrial arthropods, with emphasis on cycloalexy in leaf beetles ...
Repositorio da Producao Cientifica e Intelectual da Unicamp: Ecosystem engineers on plants: indirect facilitation of arthropod...
Memoirs: On the Antennal Musculature in Insects and other Arthropods | Journal of Cell Science
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Selective neuronal staining in tardigrades and onychophorans provides insights into the evolution of segmental ganglia in...
Evolution of dorsal-ventral axis formation in arthropod appendages : H15 and optomotor-blind/bifid-type T-box genes in the...
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Phylogeny of the genus Pseudosinella (Hexapoda, Collembola) from the Western Carpathians caves reveals Miocene diversification
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Evolution of nervous systems
Arthropods, such as insects and crustaceans, have a nervous system made up of a series of ganglia, connected by a ventral nerve ... Many arthropods have well-developed sensory organs, including compound eyes for vision and antennae for olfaction and pheromone ... include arthropods, molluscs, and numerous types of worms. There is a basic difference between the two groups in the placement ...
Pet
... and arthropod pets, such as tarantulas and hermit crabs. Small pets may be grouped together as pocket pets, while the equine ...
Seashell
Many arthropods have sclerites, or hardened body parts, which form a stiff exoskeleton made up mostly of chitin. In crustaceans ... The horseshoe crab is an arthropod of the family Limulidae. The shells or exuviae of these arachnid relatives are common in ...
Respiratory system
Arthropods. See also: Spiracle § Arthropods. Some species of crab use a respiratory organ called a branchiostegal lung.[64] Its ... Larger spiders, scorpions and other arthropods use a primitive book lung. Insects. Main article: Respiratory system of insects ...
Regeneration (biology)
Arthropods[edit]. Arthropods are known to regenerate appendages following loss or autotomy.[22] Regeneration among arthropods ... Molting cycles are hormonally regulated in arthropods,[24] although premature molting can be induced by autotomy.[22] ...
South Texas
Arthropods[edit]. *Southern black widow. *Black widow. *Brown recluse. *Texas brown tarantula ...
Dipterocarpaceae
Fossilized arthropods[edit]. Some 52-million-year-old amber found in the Gujarat province, India, containing a large amount of ...
20-Hydroxyecdysone
Ecdysteroid activity in arthropods[edit]. An ecdysteroid is a type of steroid hormones in insects that are derived from ... Sources in arthropods[edit]. The primary sources of 20-hydroxyecdysone in larvae are the prothoracic gland, ring gland, gut, ... In arthropods, 20-hydroxyecdysone acts through the ecdysone receptor. Although mammals lack this receptor, 20-hydroxyecdysone ... and metamorphosis of arthropods. It is therefore one of the most common moulting hormones in insects, crabs, etc. It is also a ...
Simple eye in invertebrates
Simple eyes in arthropods[edit]. Spider eyes[edit]. This jumping spider's main ocelli (center pair) are very acute. The outer ... Crustacea and Arthropod Relationships. Volume 16 of Crustacean Issues. Taylor & Francis. pp. 185-214. ISBN 978-0-8493-3498-6.. ... Arthropods differ widely in the habitats in which they live, as well as their visual requirements for finding food or ... Consequently, an enormous variety of eye designs are found in arthropods: they possess a wide variety of novel solutions to ...
Ivermectin
Arthropod[edit]. Evidence supports its use against parasitic arthropods and insects: *Mites such as scabies:[25][26][27] It is ...
Arecaceae
Arthropod pests[edit]. Pests that attack a variety of species of palms include: *Raoiella indica, the red palm mite[32] ...
Anatomy
Arthropod anatomy[edit]. Main articles: Arthropod, Insect morphology, and Spider anatomy. Arthropods comprise the largest ... Exoskeletons are derived from the epidermis and is composed of chitin in arthropods (insects, spiders, ticks, shrimps, crabs, ...
Onyx (architectural collective)
1972). Arthropods. New York: Praeger. Williams, Ron. ""Letter from Ron Williams" (blog),". Sherwin, Mary; et al., eds. (1982). ... and Jim Burns's book Arthropods (1972). Onyx's posters are in the permanent collection of the Frac Centre. Burns, Jim, ed. ( ...
Blue jay
The blue jay feeds mainly on seeds and nuts, such as acorns, which it may hide to eat later; soft fruits; arthropods; and ...
Haustoriidae
"Arthropods". A student's guide to the seashore (2nd ed.). Cambridge University Press. pp. 329-412. ISBN 978-0-521-46819-0. ...
Mixopterus
The tracks, referred to the ichnogenus Merostomichnites, were made by an arthropod in which only three pairs of legs took part ... Arthropods portal Paleontology portal List of eurypterid genera Pterygotioidea Carcinosomatoidea Dunlop, J. A., Penney, D. & ... Mixopterus is a genus of eurypterid, an extinct group of aquatic arthropods. Fossils of Mixopterus have been discovered in ... Supplementary information Archived 2018-02-28 at the Wayback Machine Euan Neilson Kerr Clarkson (1998). "Arthropods". ...
Libinia emarginata
Andrew J. Martinez & Candace Storm Martinez (2003). "Arthropods". Marine Life of the North Atlantic: Canada to New England. ... Arthropod Structure & Development. 38 (3): 179-194. doi:10.1016/j.asd.2008.12.002. PMID 19166968. A. G. Vidal-Gadea; M. D. ... Arthropod Structure & Development. 42 (in press): 443-454. doi:10.1016/j.asd.2013.07.003. PMID 23916868. R. E. DeGoursey & P. J ... Arthropod Structure & Development. 37 (2): 95-108. doi:10.1016/j.asd.2007.06.002. PMID 18089130. Andrés G. Vidal-Gadea & Jim H ...
2010 in paleontology
ArthropodsEdit. Main article: 2010 in arthropod paleontology. FishesEdit. Main article: 2010 in paleoichthyology ...
Jaw
In arthropods, the jaws are chitinous and oppose laterally, and may consist of mandibles or chelicerae. These jaws are often ...
Vector (epidemiology)
Arthropods form a major group of pathogen vectors with mosquitoes, flies, sand flies, lice, fleas, ticks, and mites ... The Anopheles mosquito, a vector for malaria, filariasis, and various arthropod-borne-viruses (arboviruses), inserts its ...
Stinger
A stinger (or sting) is a sharp organ found in various animals (typically insects and other arthropods) capable of injecting ... Among arthropods, a sting or stinger is a sharp organ, often connected with a venom gland and adapted to inflict a wound by ... Organs that perform similar functions in non-arthropods are often referred to as "stings". These organs include the modified ... "5-Hydroxytryptamine Content of Some Arthropod Venoms and Venom-containing Parts." Toxic on 1.4 (1963): 165-70. Web. ...
Colobognatha
Arthropods portal. ...
Hughmilleriidae
Michael J. Benton & David A. T. Harper (2009). "Ecdysozoa: arthropods". Introduction to paleobiology and the fossil record. ... Like all other chelicerates, and other arthropods in general, the hughmilleriid eurypterids possessed segmented bodies and ... especially the pterygotids which would surpass lengths of 2 metres and become the largest known arthropods to ever live. ... an extinct group of aquatic arthropods. The hughmilleriids were the most basal members of the superfamily Pterygotioidea, in ...
List of Cumacea literature
V. Arthropods. Florida Marine Research Publications 25: 1-63. Candeias, A., (1929). Nota sombre uma especia nova do Genero ... Bousfield, E.L., (1962). Studies on littoral marine arthropods from the Bay of Fundy region. Bulletin (National Museum of ... Bousfield, E.L., (1958). Littoral marine arthropods and mollusks collected in western Nova Scotia, 1956. Proceedings of the ... Arthropod Structure & Development 37 (2): 141-154 Xu Zhao-Li, Wang Yun-Long (2006). Investigation on Pelagic Isopoda and ...
Horseshoe crab
As in other arthropods, a true endoskeleton is absent, but the body does have an endoskeletal structure made up of ... Arthropods portal Chisholm, Hugh, ed. (1911). "King-Crab". Encyclopædia Britannica (11th ed.). Cambridge University Press. ... Horseshoe crabs are closely related to the extinct eurypterids (sea scorpions), which include some of the largest arthropods to ... doi:10.1111/j.1753-5131.2012.01059.x. "Anxious Arthropods". Ohio History Org. 2014-09-25. Archived from the original on 2020-03 ...
Uropetala carovei
"Bush giant dragonfly , Pare arthropods , Landcare Research". www.landcareresearch.co.nz. Retrieved 2016-09-15. Uropetala ...
Jadwiga Złotorzycka
Fascicle 3. Parasitic Arthropods. (PNW) Polish Scientific Publishers (1990) Lonc Elżbieta, Profesor Jadwiga Złotorzycka: Jej ...
Hughmilleria
... is a genus of eurypterid, an extinct group of aquatic arthropods. Fossils of Hughmilleria have been discovered in ... Michael J. Benton & David A. T. Harper (2009). "Ecdysozoa: arthropods". Introduction to paleobiology and the fossil record. ...
Entomologia Generalis
It particularly welcomes contributions examining "sustainable control strategies" of arthropod pests; beneficial arthropods; ... the journal publishes original research on insects and arthropods in general. ...
Insect winter ecology
OIKOS 93:286-293 Duman JG (2001) Antifreeze and ice nucleator proteins in terrestrial arthropods. Annual Review of Physiology. ... Functional Ecology 19:214-221 Danks, H.V. (1981). Arctic Arthropods. Ottawa, Canada: Entomological Society of Canada. p. 279. ... Antifreeze and ice nucleator proteins in terrestrial arthropods. Annual Review Physiology 63:327-357 Olsen TM and Duman JG ( ...
Mosquitoes, Ticks & Other Arthropods - Chapter 3 - 2020 Yellow Book | Travelers' Health | CDC
Mosquitoes, Ticks & Other Arthropods. John-Paul Mutebi, John E. Gimnig. Because vector control programs vary in coverage and ... Expert review of the evidence base for arthropod bite avoidance. J Travel Med. 2010 May-Jun; 17(3):182-92. ... Clothing treated with the other repellent products described above (such as DEET) provides protection from biting arthropods ... Permethrin-treated clothing repels and kills ticks, chiggers, mosquitoes, and other biting and nuisance arthropods. Clothing ...
Category:fy:Arthropods - Wiktionary
arthropods Posts
Neatorama Posts Tagged "arthropods" Dinner Time! Enjoy Your Giant Isopods... (Image: Togech)I hope that you brought your ... Arthropod Mythbusting... Afraid of spiders? Maybe its because of all those stories youve heard about their creepy ways. Some ... Arthropod Pancakes... Pancake artist Nathan Shields polled his Facebook... ...k friends, asking them to identify their favorite ... NeatoShop Products Tagged "arthropods" There are no products matching your search terms ...
Arthropod leg - Wikipedia
The arthropod leg is a form of jointed appendage of arthropods, usually used for walking. Many of the terms used for arthropod ... Evolution and homology of arthropod legs[edit]. Expression of Hox genes in the body segments of different groups of arthropod, ... "Arthropod Structure & Development. 39 (6): 453-467. Retrieved 20 August 2020.. *^ a b c d Richards, O. W.; Davies, R.G. (1977 ... In arthropods, each of the leg segments articulates with the next segment in a hinge joint and may only bend in one plane. This ...
Arthropods - Wikiquote
An arthropod (from Greek arthro-, joint + podos, foot) is an invertebrate animal having an exoskeleton (external skeleton), a ... For Arthropods[edit]. *Ha! Whare ye gaun, ye crawlin ferlie?. Your impudence protects you sairly;. I canna say but ye strunt ... Arthropods form the phylum Arthropoda, and include the insects, arachnids, myriapods, and crustaceans. ... For all their apparent differences, lobsters, crabs, starfish, and mosquitoes are all arthropods, and so vulnerable to the same ...
Threatened arthropods - Wikipedia
... critically endangered arthropods List of endangered arthropods List of vulnerable arthropods List of near threatened arthropods ... Even if constant arthropod total biomass results after certain arthropod extinctions, the ecosystem stability is compromised by ... Conservatively at least eighty percent of all living animal species are arthropods. Since arthropods constitute the majority of ... independent estimates indicate that there are millions of undocumented arthropods on Earth. Arthropods as a group have been ...
Spiracle (arthropods) - Wikipedia
A spiracle or stigma is the opening in the exoskeletons of insects and some more derived[clarification needed] spiders to allow air to enter the trachea. In the respiratory system of insects, the tracheal tubes primarily deliver oxygen directly into the animals tissues. The spiracles can be opened and closed in an efficient manner to reduce water loss. This is done by contracting closer muscles surrounding the spiracle. In order to open, the muscle relaxes. The closer muscle is controlled by the central nervous system, but can also react to localized chemical stimuli. Several aquatic insects have similar or alternative closing methods to prevent water from entering the trachea. The timing and duration of spiracle closures can affect the respiratory rates of the organism. Spiracles may also be surrounded by hairs to minimize bulk air movement around the opening, and thus minimize water loss. Chapman, R.F. (1998): The Insects, Cambridge University Press Solomon, Eldra, Linda Berg, Diana Martin ...
Insects, spiders, pseudoscorpions, and arthropods in homes.
The point is, even if youre squeamish about sharing your home with more than 500 kinds of arthropod-some of them ... and other arthropods. That means jumping bristletails, firebrats, and minute pirate bugs. Were talking about bark lice, ... an entomologist at the California Academy of Sciences and a co-author on the new domestic arthropods study. Because a survey ...
Arthropods - basic features: MedlinePlus Medical Encyclopedia Image
False scorpion | arthropod | Britannica
Investigating Plant-Arthropod Interactions
Amys arthropods are members of the Cerambycidae, a family of beetles that come in many shapes and sizes. I spent a whole ... Erwin guessed that about two-thirds of the arthropods would be found only at canopy level and one-third only at ground level, ... Erwin thought there were at least 29 undescribed arthropods for every one that has been described, but only about one-third of ... Erwins statement was based on the assumptions that many arthropods are very picky about where they live and lay their eggs ( ...
Pauropod | arthropod class | Britannica.com
Arthropod-borne encephalitides
Arthropod-borne encephalitis viruses represent a significant public health problem throughout most of the world. These viruses ... Arthropod-borne encephalitides. Author. Lyle R Petersen, MD, MPH. Lyle R Petersen, MD, MPH ... Arthropod-borne encephalitis viruses represent a significant public health problem throughout most of the world. These viruses ... This topic will review the major characteristics of most of the arthropod-borne viral encephalitides. General issues related to ...
The Arthropod Story
... The Understanding Evolution Team Click on an image to view larger version & data in a new window ... The Arthropod Story is an interactive investigation that takes you on a tour through the amazing evolutionary history of ... Parts of the Arthropod Story can also be utilized separately for indivual class activities. ... arthropods. Along the way, youll get a healthy dose of taxonomy, paleontology, natural history and principles of evolution. ...
Arthropoda (Arthropods)
Each major group of arthropods is characterised by a particular tagmosis. Arthropods include groups that are wholly marine (the ... A cross‐section of a typical arthropod segment showing basic characteristics. All arthropods are built from many such segments ... Recent phylogenomic studies are beginning to resolve arthropod relationships. Two of the largest groups of arthropods - ... Arthropoda (Arthropods). Neil W Blackstone, Northern Illinois University, DeKalb, Illinois, USA Published online: October 2012 ...
Water Balance in Land Arthropods | E. B. Edney | Springer
Writers on arthropod water relationships range from bio- physicists and biochemists to population ecologists-a fact that gives ... Water Balance in Land Arthropods. Authors. * E. B. Edney Series Title. Zoophysiology. Series Volume. 9. Copyright. 1977. ... Writers on arthropod water relationships range from bio- physicists and biochemists to population ecologists-a fact that gives ...
Arthropods - Hakalau Forest - U.S. Fish and Wildlife Service
Genome Mapping and Genomics in Arthropods | Wayne Hunter | Springer
Insects and other arthropods, the largest group of animals in number of species, have global impact on agriculture, industry, ... Arthropods covered in this volume include honeybee, bumblebee, the parasitic Jewel Wasp, silkworm, pea aphid, mosquito, Hessian ... Genome Mapping and Genomics in Arthropods. Editors: Hunter, Wayne, Kole, Chittaranjan (Eds.) ...
Project MUSE - Textbook of Arthropod Anatomy
Arthropods! | Smore Newsletters
Arthropods! - Those creepy things that crawl on you... by Courtney Murphy , This newsletter was created with Smore, an online ... Since arthropods are such a wide range of animals, there is no specific scientific name. Their trophic level is a herbivore. ... An arthropod (or is an invertebrate animal having an exoskeleton (external skeleton), a segmented body, and jointed appendages ...
Infection-derived lipids elicit an immune deficiency circuit in arthropods | Nature Communications
Infection-derived lipids elicit an immune deficiency circuit in arthropods. *Dana K. Shaw1. *, Xiaowei Wang1. *, Lindsey J. ... b) The Rel homology domain sequence from D. melanogaster Relish was used to search arthropod transcripts for relish (class I) ... Arthropod transcriptional activator protein-1 (AP-1) aids tick-rickettsial pathogen survival in the cold *Supreet Khanal ... The prevailing view of humoral immunity in arthropods is largely driven by studies performed in Dipteran insects2,16,18,19,20. ...
Arthropod-borne diseases in homeless. - PubMed - NCBI
Hannah Rose Arthropods Quiz - By RzWelshy
Arthropods (Grasshopper) | Smore Newsletters
Arthropods (Grasshopper) - Perch Dissection Pre-AP Biology April 9, 2014 - Vu 3rd by Lucas Martins , This newsletter was ... Arthropods (Grasshopper) Perch Dissection Pre-AP Biology April 9, 2014 - Vu 3rd ... Arthropods (Grasshopper) Perch Dissection Pre-AP Biology April 9, 2014 - Vu 3rd ... http://www.amnh.org/learn/biodiversity_counts/ident_help/Parts_Arthropods/grasshopper.htm. ...
Insect Arthropods (KIDR-IN)
Expression of engrailed proteins in arthropods, annelids, and chordates. - PubMed - NCBI
Expression of engrailed proteins in arthropods, annelids, and chordates.. Patel NH1, Martin-Blanco E, Coleman KG, Poole SJ, ... Other arthropods, including grasshopper and two crustaceans, have similar patterns of engrailed expression. However, these ... ancestral function was in neurogenesis and whose function was co-opted during the evolution of segmentation in the arthropods, ... antibody that recognizes a conserved epitope in the homeodomain of engrailed proteins of a number of different arthropods, ...
What Are the Common Characteristics of Arthropods? | Reference.com
The common characteristics of arthropods are they are invertebrates, which means they lack backbones. In fact, they lack bones ... Arthropods also have segmented legs, and in some of the more primitive arthropods, each segment of the body has a pair of legs ... Arthropod legs are most often used for swimming or walking, but some arthropods have pairs of legs that have been modified. ... The arthropod exoskeleton is made up of a tough material called chitin. Some arthropods, such as houseflies, have very thin and ...
True or false? All hormones secreted by arthropods | bartleby
Invertebrates, such as arthropods, (crabs and insects) produces unique hormone known as ecdysone. Ecdysone is a hormone ... To examine: Whether the statement "All hormones secreted by arthropods are also secreted by vertebrates." is true or false. ... Invertebrates produce some unique hormones especially in arthropods that play an important role in metamorphosis. ... True or false? All hormones secreted by arthropods are also secreted by vertebrates. ...
What type of symmetry do arthropods have? | Reference.com
When divided into two equal sections, both sides of the arthropod body are mirror images of each... ... Arthropods have bilateral symmetry. When divided into two equal sections, both sides of the arthropod body are mirror images of ... Since arthropods make up 90 percent of the animal kingdom, there are plenty of examples showing this body type, as stated by ... Bilateral symmetry is a feature shared by all arthropods. This symmetry refers to how the body is structured, and it is also an ...
Arthropod Genomics and Pest Management Targeting GPCRs | SpringerLink
During the last 12 years more than 50 insect and other arthropod genome projects have been started and about half of them, ... In our review we will shortly discuss the arthropods with a sequenced genome and in how far a sequenced genome might contribute ... During the last 12 years more than 50 insect and other arthropod genome projects have been started and about half of them, ... Grimmelikhuijzen C.J.P., Hauser F. (2013) Arthropod Genomics and Pest Management Targeting GPCRs. In: Ishaaya I., Palli S., ...
CrustaceansGroups of arthropodsArthropodaTerrestrialBlood-sucking arSpidersCharacteristicsPestsBeneficial arthropodsExoskeletonAppendagesInvertebratesInsects and other arthropodsMitesBiomassSpeciesTaxaLimbsDecapodaDiseasesEvolutionaryBeetlesVectorsExoskeletonsCitationDiversityCambrianSegmentAnimalsCuticleAnnelidsOrganismsAntennaeChapterGenomicsAppendageInfectious diseaseSegmentsWorld'sTreetopMorphologyInvertebrateTypical arthropodVectorMetamorphosisSoil arthropod communityMyriapodsMillipedesSalivary
Crustaceans9
- Arthropods form the phylum Arthropoda , and include the insects , arachnids , myriapods , and crustaceans . (wikiquote.org)
- Two of the largest groups of arthropods - crustaceans and insects - form a single clade, the Pancrustacea. (els.net)
- Other arthropods, including grasshopper and two crustaceans, have similar patterns of engrailed expression. (nih.gov)
- Arthropods are members of the phylum Arthropoda (from Greek ἄρθρον árthron , "joint", and ποδός podós "foot", which together mean "jointed feet"), and include the insects, arachnids, crustaceans, and others. (phys.org)
- For added protection, the exoskeleton of ocean-dwelling arthropods (the crustaceans) is strengthened by the addition of the mineral calcium carbonate. (scholastic.com)
- The data support the idea that insects are land-living crustaceans, that crustaceans comprise a diverse assemblage of at last three distinct arthropod types, and that myriapods (millipedes and centipedes) are the closest relatives of this great 'pancrustacean' group. (natureasia.com)
- Derek Briggs, Yale University, says: "This new research extends the range of this enigmatic group of fossil arthropods back to the Silurian, some 435 million years ago, and provides evidence that they belong among the crustaceans, the modern group that includes lobsters, shrimps and crabs. (eurekalert.org)
- Scientists discovered these splotchy marks in fossils of the arthropod Alalcomenaeus, an animal which shares its phylum with modern insects, spiders and crustaceans. (uncommondescent.com)
- Now, after analyzing 62 shared genetic sequences across all the arthropods, the researchers are putting the strange shrimp together with the six-legged insects, Hexapoda, to form a new group they dubbed Miracrustacea, or "surprising crustaceans. (lockergnome.com)
Groups of arthropods3
- It is now believed that several groups of arthropods evolved uniramous limbs independently from ancestors with biramous limbs, so this taxon is no longer used. (wikipedia.org)
- Major groups of arthropods exhibit a characteristic tagmosis. (els.net)
- Chapters on whiteflies and dipteran leafminers should broaden our understanding of the galling habit in other groups of arthropods. (platekompaniet.no)
Arthropoda1
- Threatened arthropods are defined here as any of a number of species within the phylum Arthropoda, whose extinction is likely in the foreseeable future. (wikipedia.org)
Terrestrial7
- In terrestrial arthropods traumatic insemination is most prevalent in the true bug infraorder Cimicomorpha, where it has evolved independently at least three times. (nih.gov)
- Given Kingdom Animalia numerically dominates this list and virtually all terrestrial vertebrates have been described, the question of how many terrestrial species exist is all but reduced to one of how many arthropod species there are. (pnas.org)
- Using analogous approaches, we also produce independent estimates for all insects, mean: 5.5 million species (range 2.6-7.8 million), and for terrestrial arthropods, mean: 6.8 million species (range 5.9-7.8 million), which suggest that estimates for the world's insects and their relatives are narrowing considerably. (pnas.org)
- Here we compare global species estimates for beetles, insects, and terrestrial arthropods from eight different methods of estimation (here called methods 1-8). (pnas.org)
- Despite this fact, the performance of primer sets employed for metabarcoding terrestrial arthropods has not been sufficiently evaluated. (doaj.org)
- In fact, soil-dwelling Collembola are reported as having no physiological or metabolic means of regulating water loss and generally have high integumental permeability compared with other terrestrial arthropods ( 2 , 3 ). (sciencemag.org)
- We produced guidelines for developing monitoring programs for invertebrates, have considered the impacts of management practices on terrestrial arthropod diversity, and have predicted the impacts of loss of eastern hemlocks due to the invasive hemlock woolly adelgid on arthropod diversity. (usf.edu)
Blood-sucking ar1
- Agents of diseases ( prions, viruses, bacteria, fungi and parasites ) are not only transmitted by body contact or direct exchange of bodily fluids, but also by means of vectors which belong to the groups of licking or blood-sucking arthropods (mites, ticks, insects) that live close to humans and their houses. (ebooks.com)
Spiders5
- According to a study published last week, your house could be home to more than 500 different kinds of insects, spiders, and other arthropods. (slate.com)
- Arthropods, or land invertebrates, include arachnids such as spiders, scorpions, and tarantulas and myriapods such as centipedes and millipedes. (animal-world.com)
- This chapter deals with the major groups of venomous arthropods: the hymenopterans , spiders, centipedes and scorpions, and urticating caterpillars. (ufl.edu)
- To quantify the transfer of inorganic mercury and methylmercury from female arthropods to their eggs, we collected and analyzed brine shrimp (Artemia franciscana), wolf spiders (Alopecosa spp. (environmental-expert.com)
- A former PhD student, David Jennings, studies interactions among distantly-related taxa, in particular spiders, carnivorous plants, and amphibians, all of which consume similar-size arthropod prey. (usf.edu)
Characteristics10
- This illustration shows some of the general characteristics of arthropods. (medlineplus.gov)
- This topic will review the major characteristics of most of the arthropod-borne viral encephalitides. (uptodate.com)
- A cross‐section of a typical arthropod segment showing basic characteristics. (els.net)
- What Are the Common Characteristics of Arthropods? (reference.com)
- The common characteristics of arthropods are they are invertebrates, which means they lack backbones. (reference.com)
- Other characteristics that all arthropods share include an exoskeleton, body segmentation and jointed appendages. (reference.com)
- Despite their vast number and varied existence, all arthropods share certain characteristics. (scholastic.com)
- What characteristics do all arthropods share? (msnucleus.org)
- Arthropod characteristics. (slideserve.com)
- Soil-dwelling arthropods have several characteristics that distinguish them from surface-living forms, in particular with respect to water balance. (sciencemag.org)
Pests12
- Sustainable Management of Arthropod Pests of Tomato provides insight into the proper and appropriate application of pesticides and the integration of alternative pest management methods. (elsevier.com)
- This book provides a global overview of the biology and management of key arthropod pests of tomatoes, including arthropod-vectored diseases. (elsevier.com)
- Arthropod pests -- Control. (powells.com)
- This publication describes the common arthropod pests of dry bean in North Dakota. (ndsu.edu)
- Note: There are 75-100 arthropod pests reported on holly ( Ilex sp. (ncsu.edu)
- In comparison, there are fewer arthropod pests are fewer, but they can be serious detriments to onion production. (umn.edu)
- Arthropod pests discussed here can be problematic in one or more areas of North America. (umn.edu)
- The SPDN invites participants of the Invasive Arthropod Workshop to submit Poster Abstracts on relevant invasive arthropod (or mollusk) issues for the southern region of the U.S. Notes on recent exotic pest introduction, new diagnostic guides, management updates, state or multi-state training events, research updates on recently introduced pests, or other information relevant to exotic arthropods in the southern region are welcome. (ufl.edu)
- DOLINSKI, Claudia e LACEY, Lawrence A. . Microbial control of arthropod pests of tropical tree fruits . (scielo.br)
- Inundatively and inoculatively applied microbial control agents (virus, bacteria, fungi, and entomopathogenic nematodes) have been developed as alternative control methods of a wide variety of arthropods including tropical fruit pests. (scielo.br)
- Microbial control of arthropod pests of banana includes banana weevil, Cosmopolites sordidus Germar (Coleoptera: Curculionidae) (with EPNs and fungi) among others Oryctes rhinoceros (L.) is one of the most important pests of coconut and one of the most successful uses of non-occluded virus for classical biological control. (scielo.br)
- Also successful is the microbial control of arthropod pests of guava, papaya and pineapple. (scielo.br)
Beneficial arthropods2
- A 2-yr study was conducted to document the influence of selected buffalograss, Buchloë dactyloides (Nuttall) Engelmann, management practices (three mowing heights and five nitrogen levels) on the seasonal abundance of the western chinch bug, Blissus occiduus Barber (Heteroptera: Lygaeidae), and its beneficial arthropods. (bioone.org)
- In contrast, buffalograss cultivar had little influence on the abundance of other beneficial arthropods collected. (bioone.org)
Exoskeleton3
- An arthropod (from Greek arthro- , joint + podos , foot) is an invertebrate animal having an exoskeleton (external skeleton ), a segmented body, and jointed appendages . (wikiquote.org)
- Arthropods are characterised by a segmented, jointed and hardened exoskeleton that has internal musculature. (els.net)
- The arthropod exoskeleton is made up of a tough material called chitin. (reference.com)
Appendages4
- The appendages of arthropods may be either biramous or uniramous . (wikipedia.org)
- The arthropod body plan consists of repeated segments, each with a pair of appendages. (phys.org)
- Consisting of or having two branches, as the appendages of an arthropod. (thefreedictionary.com)
- Modern arthropods have fewer body segments and more specialized appendages. (slideserve.com)
Invertebrates3
- Invertebrates produce some unique hormones especially in arthropods that play an important role in metamorphosis. (bartleby.com)
- Invertebrates, such as arthropods, (crabs and insects) produces unique hormone known as ecdysone. (bartleby.com)
- The World of Reptiles, Amphibians and Arthropods (land invertebrates) includes a diverse group of creatures. (animal-world.com)
Insects and other arthropods3
- Insects and other arthropods, the largest group of animals in number of species, have global impact on agriculture, industry, human health and environment. (springer.com)
- Therefore, because this is a single lineage, an understanding of their global species richness, and that of the insects and other arthropods of which they form a part, is particularly important. (pnas.org)
- Yet today many people still find it surprising that insects and other arthropods show behaviors that are much more complex than innate reflexes. (harvard.edu)
Mites1
- Arthropods such as mites and lice flourish on the bodies of almost every kind of animal on Earth. (scholastic.com)
Biomass4
- Since arthropods constitute the majority of the faunal biomass on Earth, their role is vital to the survival of large numbers of insectivores and other animals that prey upon arthropods. (wikipedia.org)
- Even if constant arthropod total biomass results after certain arthropod extinctions, the ecosystem stability is compromised by reduction in species numbers. (wikipedia.org)
- Power functions are used with arthropods, facilitating biomass estimation of a sample when destructive techniques are not feasible. (jhu.edu)
- There are no published biomass regressions for oceanic island fauna, despite the widely accepted conclusion that their arthropod assemblages are unusual in composition. (jhu.edu)
Species31
- Estimating the number of threatened arthropod species is extremely difficult, primarily because a vast number of the species themselves are not yet named or described. (wikipedia.org)
- Furthermore, according to Deyrup and Eisner, "The rate of destruction and degradation of natural habitats is currently so great that there are not nearly enough biologists to even catalog the arthropod species that are suddenly on the edge of extinction. (wikipedia.org)
- However the expansion of human activities has led to demise of many arthropod species through the mechanisms of deforestation, conventional farming, slash-and-burn methods in the tropics, habitat fragmentation via urban development, excessive use of pesticides and even the success of forest fire suppression. (wikipedia.org)
- Only a tiny fraction of the planet's endangered arthropods are formally recognized as such, as no one has ever evaluated the conservation status of the vast majority of arthropod species. (wikipedia.org)
- It is difficult to estimate the total number of endangered arthropod species, since many of the taxa themselves have not been recorded. (wikipedia.org)
- The total number of living arthropod species is probably in the tens of millions. (wikipedia.org)
- One conservative estimate puts the number of arthropod species in tropical forests alone at six to nine million species. (wikipedia.org)
- Conservatively at least eighty percent of all living animal species are arthropods. (wikipedia.org)
- in addition, arthropods constitute the bulk of faunal pollinators, so that the survival of crops as well as millions of natural flora species depend on robust and biologically diverse arthropod populations. (wikipedia.org)
- The survival of diverse arthropods is essential to propagation of higher animals on the food chain, e.g. those species who prey upon the insectivores and other taxa that consume arthropods. (wikipedia.org)
- Thus extinction of arthropods species threaten to make extinct hundreds of thousands, if not millions, of higher order birds, amphibians, reptiles and mammals. (wikipedia.org)
- citation needed] Normally arthropods represent the largest number of species that are displaced by such farming. (wikipedia.org)
- citation needed]Pesticide use is also a major threat to arthropod species survival. (wikipedia.org)
- False scorpion , also called pseudoscorpion , any of the 1,700 species of the order Pseudoscorpiones (sometimes Chelonethida) of the arthropod class Arachnida . (britannica.com)
- Are There Really 30 Million Arthropod Species? (amnh.org)
- Erwin suggested that there might be 30 million species of arthropods, implying that for every one that has already been described there are 29 that are unknown, unnamed, and unclassified. (amnh.org)
- Erwin made everybody realize that we don't know much about the host specificity of tropical arthropods, and we don't know whether the canopy and ground faunas are distinct, and we don't have any idea how many species exist. (amnh.org)
- These viruses, which belong to the families Flaviviridae , Togaviridae , Bunyaviridae , and Reoviridae, are usually highly adapted to particular reservoir hosts and are spread from animal to animal via the bite of an infected arthropod, usually a specific mosquito or tick species ( table 1 ). (uptodate.com)
- Many different species, up to 99 percent, have bilateral symmetry and not all of them are arthropods. (reference.com)
- With beetles alone accounting for about 40% of all described arthropod species, the truly pertinent question is how many beetle species exist. (pnas.org)
- Indeed, arthropods far outnumber all other types of animals combined, with an estimated 1 million species. (scholastic.com)
- All species of arthropods also share a basic body plan. (scholastic.com)
- In the simplest arthropod species, this fluid simply squishes to and fro. (scholastic.com)
- A new phylogeny based on an analysis of over 41,000 base pairs of DNA from 75 species, including representatives of every major arthropod lineage, should ease the way towards a consensus on the matter. (natureasia.com)
- Any way you look at it - by sheer weight, species diversity or population - the hard-shelled, joint-legged creepy crawlies called arthropods dominate planet Earth. (lockergnome.com)
- In a scientific and technological tour de force that was nearly a decade in the making, a team of scientists from Duke University, the University of Maryland and the Natural History Museum of Los Angeles County have compared genetic sequences from 75 different species to draw a new family tree that includes every major arthropod lineage. (lockergnome.com)
- This latest study has created a fuller picture of the arthropod family tree by using more species and more genes, he said. (lockergnome.com)
- Once assembled, the 75 species were then stripped down to their DNA for a painstaking search to find genetic sequences that would appear across all arthropods, enabling statistical comparisons. (lockergnome.com)
- Arthropod Order Decapoda (Crayfish) and Mayfly Species Hexagenia limbata (Hex) . (troutnut.com)
- Response of arthropod biodiversity to foundation species declines: the case of the eastern hemlock. (usf.edu)
- In an attempt to simplify the complex interactions between multiple species (vertebrate host, arthropod vector, and microbial pathogen) that occur during the blood meal and following the deposition of pathogen in the host, researchers routinely use artificial animal models, which do not account for a number of potential parameters. (frontiersin.org)
Taxa4
- The SPDN Invasive Arthropod Workshop provides Land Grant University, USDA-APHIS-PPQ, USDA-Forest Service, and State Departments of Agriculture the opportunity to discuss communication protocols and invasive arthropod issues relevant to the southern U.S. This workshop also allows participants to have intensive, hands-on identification training for several pest taxa of concern. (ufl.edu)
- These equations have a high predictive capacity for a broad range of arthropod taxa common in the Hawaiian Islands and, in the absence of locally developed equations, the arthropods of other oceanic islands. (jhu.edu)
- The relative adaption of arthropod taxa to the soil environment can be quantified using the QBS method ("Qualità Biologica del Suolo," or "Biological Index of Soil Quality") based upon an eco-morphological index (EMI) score from 1 to 20 that accounts for factors including arthropod pigmentation, appendage and visual apparatus development, and total body size, among others. (scirp.org)
- We are working towards identifying and verifying short cuts, such as indicator or surrogate taxa, that can predict the diversity of all other arthropods in ecosystems and are investigating the scales and context-dependencies of these relationships. (usf.edu)
Limbs7
- For a time, possession of uniramous limbs was believed to be a shared, derived character , so uniramous arthropods were grouped into a taxon called Uniramia . (wikipedia.org)
- Crustacean limbs also differ in being biramous, whereas all other extant arthropods have uniramous limbs. (wikipedia.org)
- Arthropod limbs may be uniramous (one branched) or biramous (two branched). (els.net)
- Both branches of the prosomal limbs of this new fossil are robust and segmented in contrast to their morphology in Cambrian arthropods, revealing that a true biramous limb was once present in chelicerates as well as in the mandibulates. (pnas.org)
- Arthropods' unparalleled success is in large part because of the segmented construction of their bodies and limbs. (scientificamerican.com)
- Modern arthropod limbs in their most basic form have two branches, each of which is often highly specialized for one function - for instance, moving around, sensing the environment, breathing or mating. (scientificamerican.com)
- Another mystery revolved around the apparent complete absence of limbs on their trunk - rather embarrassing for an arthropod! (scientificamerican.com)
Decapoda1
- Arthropod Order Decapoda (Crayfish) , Insect Order Ephemeroptera (Mayflies) , and Insect Order Trichoptera (Caddisflies) . (troutnut.com)
Diseases12
- Arthropod-borne diseases in homeless. (nih.gov)
- At a time when vector-borne diseases have increased their spread, Infectious Diseases and Arthropods provides physicians, infectious disease specialists, medical entomologists, and public health officials with an up-to-date, readily accessible, gold-standard reference source. (indigo.ca)
- Dynamics of Arthropod-Borne Diseases. (indigo.ca)
- II Major Arthropod-Borne Diseases. (indigo.ca)
- For the assistance of trainers in illustrating the information provided in the maps of distribution of arthropod-borne diseases and their principal vectors, a set of slides and another of transparencies for overhead projection are soon to be produced and made available against payment. (ciesin.org)
- Arthropods are well known vectors for the spread of diseases. (ebooks.com)
- This book presents reviews on examples of such arthropod-borne emerging diseases that lurk on the fringes of our crowded megacities. (ebooks.com)
- The Arthropod-Borne Disease Program tests for Arthropod-Borne diseases in order to obtain a more accurate picture of the true incidence and distribution in the County. (suffolkcountyny.gov)
- Hence, host insects and general arthropods, which developed a way to coexist with such parasites, are a promising source for the prospection of anti-parasitic compounds, as alternative methods for the treatment of protozoa-related diseases. (frontiersin.org)
- ICD-9 code 065 for Arthropod-borne hemorrhagic fever is a medical classification as listed by WHO under the range -ARTHROPOD-BORNE VIRAL DISEASES (060-066). (aapc.com)
- Arthropod-borne Infectious Diseases of the Dog and Cat is an invaluable resource for information on the clinical presentation, pathogenesis, diagnosis and treatment of the major arthropod-borne diseases of dogs and cats. (routledge.com)
- Is Arthropod Saliva the Achilles' Heel of Vector-Borne Diseases? (frontiersin.org)
Evolutionary4
- The Arthropod Story is an interactive investigation that takes you on a tour through the amazing evolutionary history of arthropods. (tolweb.org)
- Oakley TH and Cunningham CW (2002) Molecular phylogenetic evidence for the independent evolutionary origin of an arthropod compound eye. (els.net)
- The evolutionary interrelationship of arthropods (jointed-legged animals) has long been a matter of dispute. (natureasia.com)
- Our research recently published in Nature focuses on newly discovered fossils of a long-extinct group, the anomalocaridids, to fill in some of the evolutionary story for arthropods. (scientificamerican.com)
Beetles2
- Amy's arthropods are members of the Cerambycidae, a family of beetles that come in many shapes and sizes. (amnh.org)
- Following in the footsteps of researchers who have sought to engineer bio-inspired materials that harness the water-repelling, or hydrophobic, properties of lotus leaves and Stenocara beetles, a new paper proposes a relatively simple method to mimic the hydrophobicity of arthropod hairs. (scientificamerican.com)
Vectors1
- Arthropod Vectors of Infectious Disease: Biology and Control. (routledge.com)
Exoskeletons2
- Some arthropods, such as houseflies, have very thin and weak exoskeletons, while the exoskeletons of other arthropods are very tough. (reference.com)
- Thanks to their exoskeletons, arthropods became the world's first land animals some 300 million years ago. (scholastic.com)
Citation1
- citation needed] Most endangerment of arthropod populations is from habitat destruction by growing human populations and related human activities such as agriculture, construction and transportation. (wikipedia.org)
Diversity7
- Arthropods exhibit unparalleled diversity and abundance along with a correspondingly large ecological impact. (els.net)
- ABSTRACT: The main objective of this study is to assess the soil diversity, and temporal and spatial distribution of soil macro-arthropods, on different dayas in Algerian steppe. (issuu.com)
- Soil arthropods play an important role in nutrient cycling and maintenance of soil structure, and their abundance and diversity provide an indication of the biological quality of soil. (scirp.org)
- This study was conducted to quantify soil arthropod abundance and diversity for a period of one year following swine manure application via broadcast or injection. (scirp.org)
- Monitoring changes in abundance and diversity of arthropods may reveal valuable information about the ecological health of soil in response to external stimuli. (scirp.org)
- This study focused on assessing the impact of swine slurry application method and time following slurry application on soil chemical properties and arthropod abundance and diversity for a period of one year. (scirp.org)
- My collaborators and I are intimately aware of the difficulty of managing and monitoring the vast diversity of arthropods in most systems. (usf.edu)
Cambrian1
- And when a Cambrian arthropod brain turns up that can be analyzed, if it turns out to be pretty much like a modern arthropod brain, what reasonable conclusion should we draw about the design of life or the alleged lack thereof? (uncommondescent.com)
Segment3
- In arthropods, each of the leg segments articulates with the next segment in a hinge joint and may only bend in one plane. (wikipedia.org)
- Arthropods also have segmented legs, and in some of the more primitive arthropods, each segment of the body has a pair of legs. (reference.com)
- Evolution can separately modify each segment for different purposes, allowing arthropods to adapt to almost every possible environment and mode of life. (scientificamerican.com)
Animals7
- 1997) Evidence for a clade of nematodes, arthropods and other moulting animals. (els.net)
- Since arthropods are such a wide range of animals, there is no specific scientific name. (smore.com)
- Zoology) the protective or supporting structure covering the outside of the body of many animals, such as the thick cuticle of arthropods. (thefreedictionary.com)
- The arthropods, or "joint-footed" animals, also fill every imaginable environment, from the deepest ocean trenches to the highest mountain peaks, from the frozen wasteland of Antarctica to the broiling Mojave Desert in the western United States. (scholastic.com)
- Like all animals, arthropods need oxygen to survive. (scholastic.com)
- Envenomation of animals by poisonous arthropods is relatively uncommon and difficult to recognize. (merckvetmanual.com)
- No arthropod looks so fierce as the tailless whipscorpion, but in fact these animals are harmless, gentle, and extraordinarily photogenic. (myrmecos.net)
Cuticle1
- The rigid cuticle inhibits growth, so arthropods replace it periodically by molting. (phys.org)
Annelids4
- Anderson DT (1973) Embryology and Phylogeny in Annelids and Arthropods. (els.net)
- Expression of engrailed proteins in arthropods, annelids, and chordates. (nih.gov)
- On the basis of these patterns, we suggest that engrailed is a gene whose ancestral function was in neurogenesis and whose function was co-opted during the evolution of segmentation in the arthropods, but not in the annelids and chordates. (nih.gov)
- The neprhidial organs are thought to be derived from similar organs in annelids , although reduced in number since the open circulatory system of arthropods lessens the demand on separate excretory organs. (wikipedia.org)
Organisms2
- Arthropods as a group have been very successful organisms on this planet, comprising over half of all the higher life forms. (wikipedia.org)
- Her research is extremely complex, requiring knowledge of arthropods and plants and the interaction between the two groups of organisms. (amnh.org)
Antennae1
- This xiphosuran chelicerate shows many typical arthropod features both externally and internally, (c) comparison of the structure of the arthropod brain, for example, that of L. polyphemus and a crustacean and (d) might suggest that the chelicerae of the former are homologous to the second antennae of the latter, but this is far from clear. (els.net)
Chapter1
- In addition to the biological and ecological informa-tion on these arthropods, each chapter also provides information on their evolution, in most instances, viewed against the evolution of their host plants. (platekompaniet.no)
Genomics2
- Drosophila] Last Chance to Register for Arthropod Genomics Symposium! (bio.net)
- May 26, 2017: Poster Abstracts Due** & **Registration Deadline* http://globalhealth.nd.edu/10th-annual-arthropod-genomics-symposium/ The website above has information on registration, speakers, abstract submissions, the accompanying bioinformatics workshop, and accommodations. (bio.net)
Appendage1
- The arthropod leg is a form of jointed appendage of arthropods , usually used for walking . (wikipedia.org)
Infectious disease1
- This new edition is updated with the latest research findings and current theories about infectious disease and arthropods. (indigo.ca)
Segments3
- Some authors posit up to eleven segments per leg for the most recent common ancestor of extant arthropods [1] but modern arthropods have eight or fewer. (wikipedia.org)
- All arthropods are built from many such segments, which may be modified in various ways. (els.net)
- Like their exteriors, the internal organs of arthropods are generally built of repeated segments. (phys.org)
World's1
- arthropods are some of the animal world's most fascinating creatures! (animal-world.com)
Treetop1
- Erwin's statement was based on the assumptions that many arthropods are very picky about where they live and lay their eggs (this is called host specificity) and that there are twice as many arthropods that live only at treetop level as there are that live on the ground. (amnh.org)
Morphology1
- Can you name the Arthropod Morphology? (sporcle.com)
Invertebrate1
- Arthropods include the only invertebrate group to evolve flight. (els.net)
Typical arthropod2
- A typical arthropod has a simple brain, an amazing set of sense organs, and a nervous system that connects the two. (scholastic.com)
- Bed bug bites cause typical arthropod bite reactions: a small pink papulovesicle that is highly pruritic in sensitive individuals ( Figure 4 ). (renalandurologynews.com)
Vector5
- Because vector control programs vary in coverage and effectiveness, travel health practitioners should advise travelers to use repellents and other general protective measures against biting arthropods. (cdc.gov)
- These vaccines directed against vector arthropods also have the potential to effect the arthropods capacity to transmit pathogens, and this is distinct from transmission-blocking vaccines that use antigens derived from pathogens. (ajtmh.org)
- Finally, even a temporal separation of saliva- and pathogen-delivery cannot eliminate effects of arthropod saliva on a subsequent infection with a vector-borne disease ( 8 ). (frontiersin.org)
- Numerous reports have documented the potent and pleiotropic effects of the saliva of blood-feeding arthropods, which include anti-coagulation, vasodilation anti-inflammation [reviewed by ( 9 )], calling into question how minute amounts of proteins in the inoculum that is delivered during a blood meal could significantly alter the host's immune response against the vector-delivered pathogen. (frontiersin.org)
- This observation is particularly puzzling considering that vector saliva primarily evolved to assist the arthropod in obtaining a blood meal and not to facilitate the infection of the vertebrate host with a vector-borne pathogen. (frontiersin.org)
Metamorphosis1
- Some arthropods undergo metamorphosis, which means they need to pass through several stages from larva to adult. (reference.com)
Soil arthropod community2
- Soil degradation results in a significant decrease in the richness and density of soil macro-arthropods and changes the seasonal distribution of the soil arthropod community. (issuu.com)
- Land application of livestock manure provides crop nutrients and may also impact the soil arthropod community. (scirp.org)
Myriapods1
- Millipede , (class Diplopoda), any member of the arthropod class Diplopoda, distributed worldwide and commonly grouped with several other classes as myriapods . (britannica.com)
Millipedes1
- The reason for their anterior location is probably because these organs must be developed early on in the embryo and millipedes and other arthropods develop mainly by proliferation of cells at the posterior of the embryo. (wikipedia.org)
Salivary1
- The possibility of vaccinating hosts against blood-feeding arthropods using antigens derived from salivary gland, gut, and other tissues is reviewed. (ajtmh.org)